Bed for invalids



' 1 ,643,793 p 1927- c. E. SPARHAWK 1,

BED FOR INVALIDS Filed March 24, 1926 2 Sheets-Sheet 1 v w 1 Y Pq r F rx F :r P,

w INVENTOF? Q CESPARHAWK N BY 4 ATTORNEY.

Patented Sept. 27, 1927.

p iestess sreese ape ti ee ess ab i s wer eae er attendee-6F ALASKA.

Beate rrawation under the patient, aswell as admitting cool air to the bedding.

i The second object is to construct the bed so that it can be raised or lowered in alternate transverse sections for the purpose of resting a bed-ridden patient.

These results are accomplished in the manner set forth in the following specification as illustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of a bed with the outside bearings gear housing and hand grip broken away in section. Figure 2 is a plan of Figure 1. Figure 3 is an end elevation of the bed. Figure 4 is a fragmentary longitudinal section showing the sections in different positions and taken along the line H in Figure 5. Figure 5 is a horizontal section takenalong the line 5-5 in Figure 1. Figure 6 is a transverse section taken along the line 6-6 in Figure 4:.

Similar numbers of reference refer to the same parts throughout the several views.

Referring in detail to the drawings, the

frame consists of the ends 10- and the sides 11 of any'material suitable-for the purpose.

Journalihg across the sides 11 are the transverse shafts 12, near whose ends and touching the inner sides of the members 11, are pinned the arms 13 on whose outer ends are placed the rollers 14 which support an inner movable frame 15 within L-shaped slots formed by the vertical legs 16 and the L- shaped legs 17 on the under side of the frame 15.

Across the sides of the frame 15 are mounted the transverse cushions or sections 18 of upholstery whose metal ends 19 are joined to the frame 15 by the rivets 20. Between the sides 11 are secured the stationary sections 21'of upholstery which are held in place by means of the rivets 22.

On the projecting ends of the shafts 12 are secured the levers 23 which are joined by the connecting rods 24 attached to the worm wheel 25 which is mounted in the housing 26 secured on the outside of a member 11. In the housing 26 is a worm 27 Applicatioiifiled March 24, 192s. sem no, 96,913.

which meshes witlr the worm wheel 25.-.The

worm shaft 28 can be rotatedin either direction by the hand grips 29 or the crank 30 which may be placed on either of the squared ends 31 of the shaft 28. Motion may also be imparted to the shaft 28 by means of a motor (not shown) sothat the shaft 28 can be rotated without any physical effort on the part of the patient or attendant.

The operation of the bed is as follows: When it is desired to rest the patient by supporting the body on alternate sections of the bed while the remaining portion is being cooled, or the body over the unsupported sections rested, the shaft 28 is merely rotated in either direction until the desired position of the cushions 18 and 21 is attained. These may be held at a uniform level, or in extreme positions, as shown in Figure 6 in which the cushions 18 are uppermost and the cushions 21 are lowermost, or vice versa. Any intermediate position of the cushions can also be attained and held as long as desired, thereby providing a maximum amount of comfort to the patient with the expenditure of little or no physical effort.

In certain cases it may be desirable to rotate the shaft 28 continuously in order to provide a constant change of support for the patients body.

By so relating the movement of the crank formed by the worm wheel 25 to the throw of the levers 23 it will be seen that the worm wheel 25 may be rotated continuously in either direction, and that the arms 13 will never travel over ninety degrees, which is sufiicient to provide the movement desired for the cushions, and at the same time this angle is sufficiently small to enable the levers 23 to be easily operated through the connecting rods 24.

I claim:

1. A bed having, in combination, a rectangular outer frame having a'plurality of spaced cushions positioned across the top of said frame; a vertical movable inner frame;

a plurality of spaced cushions ,on said movable frame adapted to slide vertically between said first mentioned cushions; a pair of shafts journaling in said outer frame under said movable frame; arms on each shaft having rollers thereon adapted to engage slots in said movable frame; a lever on the outer end of each shaft; a worm wheel crank on said outer frame; connecting rods between said crank and said levers; shaft means having a Worm thereon for rotating said Wheel; and means for rotating said Worm shaft.

2. A bed having a rectangular frame; a plurality of stationary cushions placed across said frame and spaced from each other; a movable frame Within said rec- 10 tangular frame; a pair of shafts under said movable frame; arms on said shafts engaging said movable frame; a plurality of cush-c ions mounted on said movable frame between said fixed cushions; and means for rocking said shafts in unison in a manner that one set of cushions can be positioned above or'beloW the other set or held at the same elevation.

CHARLES sPARHAvvK; 

